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Development of Refractive Parameters in 3- to 6-Year-Old Children and Its Application in Myopia Prediction and Intervention Guidance

OBJECTIVE: To investigate refractive development and prevalence of myopia in children aged 3-6 years in Hebei Province, China, and to explore the developmental law of refraction, so as to clinically guide the prediction and intervention of myopia. METHODS: In May 2019, a total of 6120 people were in...

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Autores principales: Zhang, Ya, Su, Ming, Liu, Hua, Song, Yanxia, Liu, Jing, Sun, Huihui, Wu, Xueya, Yang, Xiaoge, Qi, Liqin, Du, Feifan, Liu, Lili, Chen, Lu, Huang, Jing, Guo, Xiting, Yang, Zhongnan, Yang, Xueping
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8702317/
https://www.ncbi.nlm.nih.gov/pubmed/34956396
http://dx.doi.org/10.1155/2021/3656831
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author Zhang, Ya
Su, Ming
Liu, Hua
Song, Yanxia
Liu, Jing
Sun, Huihui
Wu, Xueya
Yang, Xiaoge
Qi, Liqin
Du, Feifan
Liu, Lili
Chen, Lu
Huang, Jing
Guo, Xiting
Yang, Zhongnan
Yang, Xueping
author_facet Zhang, Ya
Su, Ming
Liu, Hua
Song, Yanxia
Liu, Jing
Sun, Huihui
Wu, Xueya
Yang, Xiaoge
Qi, Liqin
Du, Feifan
Liu, Lili
Chen, Lu
Huang, Jing
Guo, Xiting
Yang, Zhongnan
Yang, Xueping
author_sort Zhang, Ya
collection PubMed
description OBJECTIVE: To investigate refractive development and prevalence of myopia in children aged 3-6 years in Hebei Province, China, and to explore the developmental law of refraction, so as to clinically guide the prediction and intervention of myopia. METHODS: In May 2019, a total of 6120 people were inspected in 68 kindergartens in 11 cities in Hebei Province. Child refractive refraction was checked under noncycloplegia using a handheld binocular vision screener (SW-800, SUOER, Tianjin, China). Axial length (AL) and corneal radius of curvature (CR) were measured using an ocular biometry (IOLMaster 500, Carl Zeiss, Germany). Myopia was defined as spherical equivalent (SE) ≤ −0.75 D. RESULTS: A total of 5506 children aged 3-6 years met the criteria and were included in the statistical analysis. The prevalence of myopia was 3.49% (1.93% at age 3, 2.90% at age 4, 3.78% at age 5, and 3.88% at age 6). Overall, the mean SE was +0.67 ± 1.05 D (+0.81 ± 1.00 D at age 3, +0.79 ± 1.05 D at age 4, +0.67 ± 1.08 D at age 5, and +0.13 ± 1.01 D at age 6); the mean CR was 7.76 ± 0.26 mm (7.78 ± 0.26 mm at age3, 7.75 ± 0.25 mm at age 4, 7.77 ± 0.26 mm at age 5, and 7.76 ± 0.25 mm at age 6); the mean AL was 22.31 ± 0.73 mm (21.98 ± 0.63 mm at age 3, 22.12 ± 0.69 mm at age 4, 22.34 ± 0.73 mm at age 5, and 22.49 ± 0.73 mm at age 6). CONCLUSIONS: Prevalence of myopia increases with age in children aged 3-6 years in Hebei, China. With the increase of age, CR is basically stable, and AL increases gradually. AL/CR, which is closely related to SE, can be used as an indicator to predict myopia and guide clinical work.
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spelling pubmed-87023172021-12-24 Development of Refractive Parameters in 3- to 6-Year-Old Children and Its Application in Myopia Prediction and Intervention Guidance Zhang, Ya Su, Ming Liu, Hua Song, Yanxia Liu, Jing Sun, Huihui Wu, Xueya Yang, Xiaoge Qi, Liqin Du, Feifan Liu, Lili Chen, Lu Huang, Jing Guo, Xiting Yang, Zhongnan Yang, Xueping Comput Math Methods Med Research Article OBJECTIVE: To investigate refractive development and prevalence of myopia in children aged 3-6 years in Hebei Province, China, and to explore the developmental law of refraction, so as to clinically guide the prediction and intervention of myopia. METHODS: In May 2019, a total of 6120 people were inspected in 68 kindergartens in 11 cities in Hebei Province. Child refractive refraction was checked under noncycloplegia using a handheld binocular vision screener (SW-800, SUOER, Tianjin, China). Axial length (AL) and corneal radius of curvature (CR) were measured using an ocular biometry (IOLMaster 500, Carl Zeiss, Germany). Myopia was defined as spherical equivalent (SE) ≤ −0.75 D. RESULTS: A total of 5506 children aged 3-6 years met the criteria and were included in the statistical analysis. The prevalence of myopia was 3.49% (1.93% at age 3, 2.90% at age 4, 3.78% at age 5, and 3.88% at age 6). Overall, the mean SE was +0.67 ± 1.05 D (+0.81 ± 1.00 D at age 3, +0.79 ± 1.05 D at age 4, +0.67 ± 1.08 D at age 5, and +0.13 ± 1.01 D at age 6); the mean CR was 7.76 ± 0.26 mm (7.78 ± 0.26 mm at age3, 7.75 ± 0.25 mm at age 4, 7.77 ± 0.26 mm at age 5, and 7.76 ± 0.25 mm at age 6); the mean AL was 22.31 ± 0.73 mm (21.98 ± 0.63 mm at age 3, 22.12 ± 0.69 mm at age 4, 22.34 ± 0.73 mm at age 5, and 22.49 ± 0.73 mm at age 6). CONCLUSIONS: Prevalence of myopia increases with age in children aged 3-6 years in Hebei, China. With the increase of age, CR is basically stable, and AL increases gradually. AL/CR, which is closely related to SE, can be used as an indicator to predict myopia and guide clinical work. Hindawi 2021-12-16 /pmc/articles/PMC8702317/ /pubmed/34956396 http://dx.doi.org/10.1155/2021/3656831 Text en Copyright © 2021 Ya Zhang et al. https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Zhang, Ya
Su, Ming
Liu, Hua
Song, Yanxia
Liu, Jing
Sun, Huihui
Wu, Xueya
Yang, Xiaoge
Qi, Liqin
Du, Feifan
Liu, Lili
Chen, Lu
Huang, Jing
Guo, Xiting
Yang, Zhongnan
Yang, Xueping
Development of Refractive Parameters in 3- to 6-Year-Old Children and Its Application in Myopia Prediction and Intervention Guidance
title Development of Refractive Parameters in 3- to 6-Year-Old Children and Its Application in Myopia Prediction and Intervention Guidance
title_full Development of Refractive Parameters in 3- to 6-Year-Old Children and Its Application in Myopia Prediction and Intervention Guidance
title_fullStr Development of Refractive Parameters in 3- to 6-Year-Old Children and Its Application in Myopia Prediction and Intervention Guidance
title_full_unstemmed Development of Refractive Parameters in 3- to 6-Year-Old Children and Its Application in Myopia Prediction and Intervention Guidance
title_short Development of Refractive Parameters in 3- to 6-Year-Old Children and Its Application in Myopia Prediction and Intervention Guidance
title_sort development of refractive parameters in 3- to 6-year-old children and its application in myopia prediction and intervention guidance
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8702317/
https://www.ncbi.nlm.nih.gov/pubmed/34956396
http://dx.doi.org/10.1155/2021/3656831
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